Bug 1543457 (CVE-2018-6791)

Summary:	CVE-2018-6791 kde-runtime: Arbitrary command execution in the removable device notifier
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jgrulich, kde-sig, me, rdieter, than
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	plasma-workspace 5.8.9, plasma-workspace 5.12.0	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-04-30 06:19:30 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1543471
Bug Blocks:	1543469

Description Adam Mariš 2018-02-08 13:45:22 UTC

An issue was discovered in soliduiserver/deviceserviceaction.cpp in KDE Plasma Workspace before 5.12.0. When a vfat thumbdrive that contains `` or $() in its volume label is plugged in and mounted through the device notifier, it's interpreted as a shell command, leading to a possibility of arbitrary command execution. An example of an offending volume label is "$(touch b)" -- this will create a file called b in the home folder.

External References:

https://www.kde.org/info/security/advisory-20180208-2.txt

Comment 1 Adam Mariš 2018-02-08 14:09:16 UTC

Created plasma-workspace tracking bugs for this issue:

Affects: fedora-all [bug 1543471]

Comment 2 Tomas Hoger 2018-03-08 20:47:33 UTC

Upstream commits:

Plasma 5.8:
https://commits.kde.org/plasma-workspace/9db872df82c258315c6ebad800af59e81ffb9212

Plasma 5.9/5.10/5.11:
https://commits.kde.org/plasma-workspace/f32002ce50edc3891f1fa41173132c820b917d57

Comment 3 Stefan Cornelius 2018-04-30 06:19:41 UTC

Statement:

This issue did not affect the versions of kdebase-runtime as shipped with Red Hat Enterprise Linux 6. This issue did not affect the versions of kde-runtime as shipped with Red Hat Enterprise Linux 7.